Question: Who was the head of government of Saarbrücken that ended at 2004-0-0?
Paraphrase: Give me the name of the head of government of Saarbrücken that was replaced in 2004.
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q1724 p:P6 ?s . ?s ps:P6 ?obj . ?s pq:P582 ?x filter(contains(YEAR(?x),'2004')) }